As per my previous post, I'm still struggling with getting smooth HDTV playback. The system is a 2.8ghz P4 with a FX5200 video card with the Nvidia 7676 driver. I am currently using the SVN head revision, but my problems were there with the 0.18.1 version as well.
When xvMC is enabled, my CPU usage is only 35-45% playing 1080i. However, I get rashes of 2006-01-02 12:40:54.470 NVP: prebuffering pause 2006-01-02 12:40:54.587 NVP: prebuffering pause 2006-01-02 12:40:54.702 NVP: prebuffering pause 2006-01-02 12:40:54.754 NVP: prebuffering pause 2006-01-02 12:40:54.871 NVP: prebuffering pause 2006-01-02 12:40:54.987 NVP: prebuffering pause Sometimes several per second, and the audio gets garbled when it gets bad. I can sometimes tune away and tune back to a channel and it will play smoothly for some period of time before it breaks up again. Extra audio buffering is enabled. If I disable extra audio buffering, video runs in slow motion. I've tried with and without xvMC, no matter what I do my system has trouble keeping up with the audio. I've tried ALSA output as well as OSS. The same happens on 720p channels that use even less CPU. I don't get it? I've verified that AGP is on, with 8x with fast writes and sideband enabled (and also without). Another interesting error in the log: 2006-01-02 12:08:04.864 VideoOutputXv Error: ProcessFrameXvMC: Failed to get OSD lock I can't find any references to this error anywhere on the net. The black-and-white OSD does appear. I'm not sure it's important although I would like the OSD to perform better than it does. Any thoughts?
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